Basis Of Presentation (Narrative) (Details)	3 Months Ended	9 Months Ended
	May 31, 2020 USD ($) country	May 31, 2020 USD ($) country item	Sep. 01, 2019 USD ($)
Business Acquisition [Line Items]
Number of areas of expertise | item		7
Number of important distinguishing characteristics from competitors | item		3
Impairment charges	$ 0
Operating lease liabilities	1,383,000	$ 1,383,000
Operating lease right of use assets	$ 1,383,000	$ 1,383,000
Accounting Standards Update 2016-02 [Member]
Business Acquisition [Line Items]
Operating lease liabilities			$ 1,500,000
Operating lease right of use assets			$ 1,500,000
Minimum [Member]
Business Acquisition [Line Items]
Number of countries in which entity operates | country	140	140